Hello Bpatel.


We are sorry to hear about the difficulties you have experienced with your 80V 21" Self-Propelled Lawn Mower. We understand how frustrating it is when a new mower does not perform as expected, especially when your 40V model worked more smoothly for you.

This 80V mower is designed for higher power output, which can make it more sensitive to factors such as cutting height, grass thickness, and buildup under the deck. If grass accumulates beneath the mower, it can restrict airflow and reduce cutting efficiency and occasionally cleaning underneath the deck can help restore performance. We recommend doing this only when the battery is removed for safety.

Regarding runtime, actual cutting time can vary depending on the height and density of the grass, the mowing mode used, and terrain. Using higher height settings (levels 5 or 6) does not mean “cutting nothing,” but allows the mower to maintain power more effectively in thick or tall grass. For shorter, well-maintained lawns, lower settings should work better once the deck is clear.

We appreciate your feedback and want to make sure your mower works the way it should. If cleaning the deck does not resolve the issue, please reach back out to our support team with your unit and battery information so we can assist further under warranty.

They can be reached either using the online chat function, on Greenworks Tools page, accessible by clicking “Chat with an Expert” in the bottom corner of your screen, Chat with a Live Agent I Monday - Friday: 9:30am – 5pm EST or by calling 1-888-909-6757 between 9AM and 7PM EST, M-F. 9AM and 5PM EST, SAT - SUN. So, our experts can discuss your experience; please have your unit, battery and charger with you along with the model and serial number to complete troubleshooting to ensure quick resolution is provided. *Hours are subject to change without notice.

Thank you for giving Greenworks the opportunity to improve your experience.